Table 3.

Test for time-dependent changes in daily intake of each ethanol-containing test solution

		Phase 1 (Days 1–8)		Phase 2 (Days 9–11)
Test solution	n	Friedman test statistic	P-value	Friedman test statistic	P-value
E	7	13.35	0.064	3.74	0.172
E + SS	7	10.32	0.171	2.15	0.381
E + SSM	7	7.42	0.387	3.58	0.178
E + SSM2	8	31.88	<0.001*	3.94	0.156
E + SSM4	8	39.80	<0.001*	0.75	0.794

See Figure 2 for an illustration of the data and Table 1 for a key to the acronyms. We analyzed daily intake of the test solutions, separately for Phases 1 and 2, with Friedman test. Because we conducted two Friedman tests for each test solution (during Phases 1 and 2), we had to control the Type 1 error rate with Bonferroni correction (*P < 0.05/2 = 0.025).